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why is my aprilaire thermostat blinking

by Lizzie Stracke Published 3 years ago Updated 3 years ago

Why is my aprilaire thermostat blinking? If your thermostatkeeps blinkingduring the normal operation of your AC, that usually means there's an issue with the outdoor portion of the system. It's basically been locked out, meaning that it has shut itself down and sent a signal to the thermostatletting it know there's an issue.

If you see a flashing light on your thermostat, that's a signal that there's a problem with your outdoor unit. When this happens, your outdoor unit will shut off and send a signal to your thermostat, causing it to blink. Thing is, that signal doesn't mean your indoor unit is made aware of the problem.Oct 2, 2017

Full Answer

Why is my thermostat blinking?

So if you’re thermostat is blinking, here’s why. If you see a flashing light on your thermostat, that's a signal that there’s a problem with your outdoor unit. When this happens, your outdoor unit will shut off and send a signal to your thermostat, causing it to blink.

Is there a troubleshooting guide for Aprilaire thermostats?

This quick troubleshooting guide for different Aprilaire thermostats will help you figure out the problem with your unit and fix it right away. Note that some errors or faults require some level of skill to sort out. Don’t work on parts of the thermostat you don’t understand or are unsure of.

Why is my thermostat making a clicking noise?

Clicking noises aren’t common in the new-school thermostats, even under normal operating conditions. For example, ecobee’s support team noted that a “clicking” sound may be indicative of a bad C wire, or inadequate voltage between the C and RC terminals.

Why is my AC not blowing any cool air but thermostat flashing?

Is your AC not blowing any cool air but your thermostat is flashing "Cool On?" All this means is that the temperature in your matches what your thermostat is set at. Because your AC no longer needs to push out cool air when the temperature matches what the thermostat is set for, it creates a time delay and your compressor shuts off.

Why does my thermostat keep flashing?

If your the screen on your thermostat is blinking, it may just mean that the battery is low, and this is simply your unit's way of telling you to replace its batteries before it dies entirely. If this is the case, unscrew the thermostat from your wall and replace its batteries.

Why is my aprilaire thermostat not heating?

Check the circuit breaker and reset if necessary. Make sure the power switch at the heating & cooling system is on. Make sure the furnace door is closed securely. If the thermostat is battery powered, make sure fresh AA alkaline batteries are correctly installed.

How do I reset my aprilaire thermostat?

The thermostat has a memory backup that saves the thermostat's settings in case of a power interruption . The reset button located under the battery cover can be used to reset the thermostat back to factory defaults.

Why is my furnace thermostat blinking?

If your thermostat screen is blinking, it may simply be a sign that the batteries are low and need to be replaced. When your thermostat's batteries eventually die, you will be presented with a blank display screen — and unable to cool or heat your home.

Why is my thermostat not turning the heat on?

If your heating system will not turn on, the first thing you should do is check the thermostat. The thermostat's battery may have gone bad, causing it to power off. If your thermostat is hardwired, a power surge, brownout, or brief power outage may have caused the thermostat to lose its settings.

Why is my heat not kicking on?

If your furnace is not kicking on, it can be an issue with the thermostat. You should first make sure that the thermostat is switched to the heating function. Next, make sure that the temperature that you have the thermostat set on is lower than the temperature in the home.

How do you manually reset a thermostat?

Reset the Thermostat Common methods for resetting a thermostat include installing the battery backward for five seconds, pushing a recessed reset button with a pin or paper clip, or shutting off the breaker to the thermostat for 30 seconds.

What does red light mean on aprilaire thermostat?

When the thermostat light (Emergency Heat Light) is flashing or on during normal operation (whether in the cooling or the heating mode, but not the Emergency Heat mode), this usually indicates that the outdoor unit is "locked-out".

How do I change the battery in my aprilaire thermostat?

0:071:23Aprilaire 8444 8463 Battery Change 720p - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd gently squeeze. And pull down here you'll see your two double-a batteries to remove theMoreAnd gently squeeze. And pull down here you'll see your two double-a batteries to remove the batteries.

Why is my thermostat blinking red?

If your thermostat shows you a blinking red light, the battery is charging and it'll eventually turn on. It can take up to an hour if the battery is extremely low. If there's no blinking red light, it's possible that you've put wires into the wrong thermostat connectors.

Why is my thermostat blinking?

One other common reason why your thermostat may be blinking is that it has a low battery and it is warning you it's time to replace it before the battery dies. Changing your thermostat's battery is quite simple. You just have to unscrew it from the wall, replace the batteries, and screw it back on.

Why does my AC compressor shut off?

All this means is that the temperature in your matches what your thermostat is set at. Because your AC no longer needs to push out cool air when the temperature matches what the thermostat is set for, it creates a time delay and your compressor shuts off.

How long does it take for a light to turn off on an outdoor unit?

Most often, you’ll need to shut off your indoor unit for a minute, then turn it back on after 30 seconds, causing the light to turn off as well. Wait about 10 minutes, then check to see if your outdoor unit has turned back on. If it has, the problem was probably with the circuit breaker.

How to reset a thermostat?

Most programmable thermostats will flash a code when a problem takes place. Here’s what to do if this happens: 1 Count the number of flashes you see. It should be anywhere from two to nine. 2 Turn the thermostat off, wait 30 seconds, and turn it back on. While this may restart your system automatically, there is a chance that it could take up to 10 minutes. 3 Wait 10 minutes and see if the outdoor unit has started running again. 4 If it hasn’t, and there’s no obvious reason (like a tripped circuit breaker), you should call a professional.

Why are programmable thermostats so good?

Today’s programmable thermostats are great, because not only do they help cooling systems run more efficiently, they can also warn you if there’s a problem. Let’s take a closer look at why this blinking problem occurs and what you can do about it.

How long does it take for a thermostat to flash?

Here’s what to do if this happens: Count the number of flashes you see. It should be anywhere from two to nine. Turn the thermostat off, wait 30 seconds, and turn it back on.

Why does my thermostat keep blinking?

If your thermostat keeps blinking during the normal operation of your AC, that usually means there’s an issue with the outdoor portion of the system. It’s basically been locked out, meaning that it has shut itself down and sent a signal to the thermostat letting it know there’s an issue.

Who is Randy Murphy?

Randy Murphy. Randy Murphy has been building his knowledge of the air conditioning and heating business for several years now. He first started applying his knowledge while working for his father’s HVAC company. Later, in 1987, Randy started his own business: Metro Express Service. He has been a top 10 Trane & Amana dealer for over eight years.

Why does my thermostat keep clicking?

Other Causes Of Short-Cycling. Essentially, a continuously clicking thermostat may be symptomatic of a short-cycling furnace, boiler, or condenser. What’s causing the short-cycling to begin with may lie in where the thermostat’s installed, but it could also be due to: An oversized furnace. You’d think a bigger-than-needed furnace wouldn’t be ...

What does it mean when your thermostat clicks?

When your thermostat clicks, you hear the electrical contacts within the thermostat completing a circuit. A contact allows a low-voltage electrical current to travel between your heating and/or A/C system and the thermostat. As the current is traveling back to the system, your air handler or boiler gets the OK to start running.

What happens if you have no signal on thermostat?

If you come back with no signal, or a signal lower than 24 volts, the thermostat wire is the issue and needs to be replaced. If the wire needs to be replaced, go to the unit connected to the thermostat you just diagnosed.

How many volts does a thermostat register?

Make sure it can register low-voltage (24 volts). Once you have these items, you’re ready to diagnose the wire running to your thermostat: Remove the thermostat from the wall to expose the circuit board (digital) or subbase (mechanical) of the thermostat itself.

What is a mechanical thermostat?

A mechanical thermostat contains a bimetal coil that expands and contracts with changes in temperature. This movement causes the contacts within the thermostat to open (terminate the circuit) or close (complete the circuit). Let’s say you set the temperature in your home to 70 degrees Fahrenheit.

What does it mean when a furnace blower motor is broken?

A broken blower motor. If the blower motor on your furnace is damaged, speak with an HVAC technician about the life of your system.

Where should the thermostat be connected to?

If you have a boiler, the thermostat should either be connected to a zone valve, or a central relay, depending on the way it was originally set up. In the event you have a furnace and/or air handler, the wire will be connected directly to a circuit board mounted to the unit itself.

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